2011306143 has 16 divisors (see below), whose sum is σ = 3343470336. Its totient is φ = 1044834240.

The previous prime is 2011306117. The next prime is 2011306153. The reversal of 2011306143 is 3416031102.

It is not a de Polignac number, because 2011306143 - 2⁵ = 2011306111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011306153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4353246 + ... + 4353707.

It is an arithmetic number, because the mean of its divisors is an integer number (208966896).

Almost surely, 2^2011306143 is an apocalyptic number.

2011306143 is a deficient number, since it is larger than the sum of its proper divisors (1332164193).

2011306143 is a wasteful number, since it uses less digits than its factorization.

2011306143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8706974.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2011306143 is about 44847.5879284494. The cubic root of 2011306143 is about 1262.2907314220.

Adding to 2011306143 its reverse (3416031102), we get a palindrome (5427337245).

The spelling of 2011306143 in words is "two billion, eleven million, three hundred six thousand, one hundred forty-three".